I do the equivalent to Tivo2Go with a Series 1 DirecTivo. From what I've read, the tools that I use are substantially faster than Tivo2Go. I have been known to use VNC from a remote location to transfer a show from my Tivo to my computer, where I'll transcode it to mpeg2 and place it on my FTP server, so that I can download it wherever I am. This gets me far better video quality than I'd get with my Slingbox. However, transferring a 1-hour program and transcoding it takes about 20 minutes on my system and results in approximately 1-gigabyte or so of video data. That can take 6-8 hours to download via FTP, depending on where I am.

With the Slingbox, I get instant gratification -- I can watch whatever I want, whenever I want. I tend to use the longer "copy, transcode and download" approach for shows that have some visual element, e.g. Lost or The Amazing Race. For other shows, e.g. The Colbert Report or the Daily Show, I'll use the Slingbox.